KR> Willie

[Avlec Projects cc]

Hi
Will Willie V D Walt pleae contact me privately please at av...@telkomsa.net

Regards
Dene Collett
KR2SRT builder
Whisper motor glider assembler
see: www.whisperaircraft.com
Port Elizabeth
South Africa

KR> project status

[AVLEC]

Jeff,
I made my turtle deck very similar to yours. I made a framework by cutting
four squares of 1/4'' ply all the same size. I marked out the turtledeck
shape at each of the four stations and then cut out the shapes. I then built
up a framework from a few 2x4 bits of scrap pine that positioned the four
plies at the correct distances from each other. Into this I forced a sheet
of the thinnest galvanized sheet I could find and fastened it in place. Into
this I laid up two layers of  200g BID.
while this was getting tacky I took a sheet of 3/8 foam and ripped it into
20mm strips. I then took these strips and laid them up onto the previously
laid glass using micro slurry as adhesive. It looks just like a classic
yacht hull when finished. After this had cured, I sanded the inside smooth
and laid up one layer of 200g BID (after vacuuming up all the dust). After
this had cured for two days I removed it from the jig/mould, trimmed it and
fit it to the fuselage. I havn't weighed it but it is extremely light and I
am sure that I could stand on top of it without it breaking. A bonus was the
outside surface is perfectly smooth and shiny so no sanding.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "wilder_jeff Wilder" 
To: 
Sent: Tuesday, June 05, 2007 4:04 PM
Subject: KR> project status


>
> well all, I think I have a winner!  I've attempted to make a turtle deck,
> this is now the 3 attempt.

KR> wire and octane questions

[AVLEC]

Guys,
As I am busy with fuel and electrical systems at the moment, I have a
question on both.
There has been some mention of another type of wire available from marine
supply houses lately and was wondering how silicone insulated wire would
compare to tefzel or the other acceptable insulations. It is definately not
as tough but is definately fire proof (up to what temperature I don't know).
My other question is regarding octane rating of fuel. I know that lead was
removed from fuel for envoromental reasons. The way I understand it the lead
served two purposes of which one was to raise the octane level. Now that the
lead has been removed we are left with a fuel with a lower octane rating. Is
there not another method of raising the octane of the fuel we use ourselves.
We have recently had leaded fuel removed from the market here and the new 95
unleaded fuel is playing havoc with my pickup's motor. I know I am getting
mild detonation and have to be very careful how I drive it. I really don't
want to retard the timing in order to sidestep detonation as the vehicle is
already under powered in my opinion.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Lost Facet data

[AVLEC]

Guys,
A while ago somebody posted a link to a web page containing a list of all
the different models of facet pumps with their model numbers. I saved the
page (at least I thought I did) but all I have there now is a short cut to
something that aparently doesn't exist.
Can somebody please direct me to this page again. I did take a look on the
Facet-purolator websight but all I could find there is a few lists matching
vehicles to different pumps. I am looking for the page that gives the model
number with a list of that pumps attributes eg: anti siphon valve or not,
non return valve or not, etc.
I bought a pump last week and the only way to test whether it has an anti
siphon valve was to suck on it. All I got from this was a mouth full of the
most vile oily stuff!
Thanks

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> lost facet information

[AVLEC]

Thanks to Jeff and Mark L I once again have the information saved.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Termite

[AVLEC]

You can also identify it by measuring its antennae and then calculate what
freq it is tuned for. :)
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Ed Janssen" 
To: "KRnet" 
Sent: Sunday, April 08, 2007 3:45 PM
Subject: Re: KR> Termite


> Nick,
>
> A bit off the KR subject for sure, but you may have seen a winged ant.
The
> easiest way to tell a winged ant from a winged termite is that the antenna
> of a winged ant are bent, like at your elbow.  The termites have straight
> antenna.  Ants also have a slim waist and mostly black bodies.

KR> DESPERATE for schematic for ICOM A5!

[AVLEC]

Guys, I decided to try again and request that anybody with a schematic
diagram for an ICOM  IC-A5 please contact me. I have a problem with mating
it to an intercom system. It will only transmit when the intercom unit is
turned off. It would appear that the carrier wave is sent but without any
modulation. Bill Clapp, didn't you have a sinilar problem a while ago?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> moto-glider

[AVLEC]

Barry wrote:
"Look at the Whisper Motor Glider at http://www.whisperaircraft.com/ for an
 economical kit glider."

Guys, I might be jumping the gun here and am getting slightly off the topic
but for those who would possibly like to see a Whisper motor glider, Whisper
Aircraft is at present negotiating a deal with a US based individual who
looks like he might take four Whisper motor glider kits soon. If this
happens, they will be fast build kits which I assemble. You might just be
able too see it in person soon! I also have an article in a local flying
publication that featured a test on it that I could scan if anybody is
interested.(OFF LIST) I also have one in my workshop at the moment if
anybody would like to see a pic of something specific.There is also three
kits in Australia already, one fast build (sold) and two basic kits which
are still for sale as far as I know.
Let's get back to things KR now.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> really dumb question, pushrods

[AVLEC]

Guys,
I need to ask a really dumb question. I am starting to build a model mustang
from correx and need to know what a yardstick is, or rather the dimensions
of a yardstick. I presume that it is a yard long but have no clue as to how
many furlongs wide it is or how many acres thick. It is used for the main
spar in the model.
To make this post KR related, does anyone know of a way to move the aileron
actuation to behind the rear spar inside the fuselage before exiting the
sides. It must preferably fit through the gap under the rear spar which is
roughly 30mm.( AS5048) I intend to use pushrods for elevator as well as
ailerons. I have an idea of a torque tube for aileron actuation with a
pushrod running through it for elevator actuation but it is fairly
complicated at the stick end. There must be an easier way to achieve this.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> really dumb question, pushrods

[AVLEC]

Thanks Rick,
I will rip up some offcut KR spar material. That should do the trick. It's
amazing how something so simple and taken for granted (in your part of the
world) could have me stumped in this part of the world! I had no idea it was
actually a ruler.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: 
To: "KRnet" 
Sent: Thursday, March 22, 2007 10:44 PM
Subject: Re: KR> really dumb question, pushrods


> I'm sure you already know, but it's a 36" long ruler usually marked in 1/8
> inch increments. The "yardstick" I have is 36 inches long, 1-1/8 inches
wide
> and 1/8 inch thick. Use to be "give-aways" at hardware and furniture
stores
> but are becoming very hard to find.

KR> antennae tuning update

[AVLEC]

Guys,
Today I spoke to an old radio technician (35 years experience) about tuning
the antennae in the aircraft. He said that I would definately get false
readings with the SWR meter that I have and that I shouldn't use it as it
was designed for 29mghz. He also said that tunung it in my workshop with a
corrugated iron roof won't help either. I have arranged to borrow a Bird
Wattmeter from him so it should be plain sailing from here.
So as it turns out, I was talking a load of dribble after all. Hey what do I
know anyway!
In my defence, I did try tuning it with my meter first and I managed to get
the SWR below 1 on the lower freq and below 1.5 on the high freq. I don't
know if I was imagining it but I could have sworn that the received audio
was louder and clearer. I will compare the results with what the Bird tells
me.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> icom IC-A5

[AVLEC]

Hi guys
I have been asked by a friend to take a look at his radio installation in
his Jodel. I know that he has an ICOM IC-A5 radio and an unknown intercom.
He says that he and a friend tried to wire it up and managed to get it to
work, except that the ptt button on the stick does not work. He has to
manually press the ptt button on the radio to get it to transmit.
I will probably only get to see the installation on Saturday for the first
time so would like to arm myself with as much info as possible. I did
download the manual but that only shows the routing using the ICOM supplied
harness that plugs into the radio.
Does anyone have the actual wiring diagram for the radio besides the
schematic that appears in the manual. Thanks.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Rolling the KR

[AVLEC]

Jeff,
My friend who used to own ZS-WEC could roll it so that I couldn't feel the
roll with my eyes closed except for a slight nose up pitch as he entered the
roll. He also did 15 consecutive rolls with it one day!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "J L" 
To: "KRnet" 
Sent: Monday, March 12, 2007 5:32 PM
Subject: Re: KR> Rolling the KR


> If you do it right, you should not impose more than 1g on the airframe
> in a roll.
>
> Jeff

KR> late Friday off topic

[AVLEC]

Hi Guys
For those that do google earth, take a look at Lat 33.9035694268  Long
25.2609252955
This is my home and place of work. The house is just to the east with the
blue roof. The pic is a bit old but not much has changed. I plan on putting
in a strip from somewhere on the northern side of the dam westwards for
roughly a 26/08. That will make 26 basically straight into the prevailing
wind.
Fantastic thing this Google earth!

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> antennae tuning

[AVLEC]

Hi KR radio heads
This one is for the radio literate. I have just installed an antennae into
an aircraft made from coax only. I left the radiator and counterpoise too
long on purpose so that I could tune it to length in the aircraft using a
SWR meter and a handheld radio. Here is where my confusion starts.
I have in the past built a number of antennae for CB radio and have tuned
them with one of two SWR meters that I have and they worked fine.
Today I spoke to a guy that has built a few airband antennae and he says
that the SWR meters suitable for CB radio freq are not suitablr for
airband?? As far as I know all a SWR meter is is a voltmeter so why should
the freq make any difference? He also told me that a handheld radio does not
put out enough power to be able to get reliable readings??? Sounds really
obsurd to me.
Comments from those in the know would be very much appreciated.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> antennae tuning

[AVLEC]

Virg,
 I am well aware of what the frequencies are. How else would I be able to
calculate what the THEORETICAL resonant length should be? The problem is
that as soon as you install the antennae into the airframe you get
capacitive coupling between the structure and the antennae which usually
lowers the resonant freq of the antennae. The antennae should therefore be
fine tuned in the position where it is going to spend the rest of its days.
 My question was whether the
SWR meter that I have used on CB freq was able to do airband freq as I was
always under the
impression that it didn't care what freq passed through it. It is after all
just a voltmeter. A resonant antennae would absorb maximum current, dropping
the voltage to a minimum which would be measured as a low reflected power
and vice versa.I would imagine that the power output of the transmitter
would be the limiting factor. You could reach a situation where the power
transmitted was too much for the meters level adjustment to bring the
reading within range of the meter's scale.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "VIRGIL N SALISBURY" 
To: 
Sent: Tuesday, February 27, 2007 5:48 AM
Subject: Re: KR> antennae tuning


> The CB freq is 27 Meg. Airband is108 to137 Meg.
> A BIG difference. HF VS VHF, Tune for max signal on receive, Virg

KR> antennae tuning

[AVLEC]

Wolfgang, YOU DA MAN!!
You sound like you know what you are talking about. I will go ahead and tune
with what looks like the best meter of the two I have. Thanks
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -

KR> antennae tuning

[AVLEC]

Virg wrote:
   To keep it short, Tune for max receive signal, Virg


Thanks Virg
You should have been a teacher, I learnt a whole bunch from that one
sentence!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "VIRGIL N SALISBURY" 
To: 
Sent: Tuesday, February 27, 2007 11:00 PM
Subject: Re: KR> antennae tuning


>

KR> antennae tuning

[AVLEC]

Guys,
I have three articles here written by one Jim Vance. They handle building
antennae for aircraft (his own KR2) from co axial cable only. He also
explains how to use an SWR meter to tune the antennae. There is no mention
of using a specific SWR meter for the freq. I have sent them to Jim Raleigh
privately. Maybe someone can post them somewhere for all to see, Mark???
They even have pictures!! Actually they are very well written and could
easily have been used in a "how to" text book.

I think Wolfgang is on the right track regarding SWR meters, all I need to
measure is the ratio between the forward and reflected power. If the meter
is not suited to the freq, then it should give the same error both ways.
What else would the level setting be for but to set the needle to max scale
for forward power. The reflected power would then be a ratio of that full
scale readingright?? Nowhere on the meters scale does it even mention
watts but it does mention RATIO. It is after all a "standing wave RATIO"
meter and not a wattmeter. Now if I wanted to measure the actual power then
I would need something like a Bird wattmeter. This is my understanding of it
anyway and may well be totally screwed up.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> antennae tuning

[AVLEC]

Louis Wrote:
"SWR meters *do* care about the freq. The Bird Watt meter has many
> inserts
> for different frequency ranges.If your SWR meter is a commercially
> available
> meter it should specify the frequency range.
Hi Louis
Yes I have used a bird wattmeter many times. It is a real piece of precision
measuring equipment. I used to use it on both UHF and VHF telemetry antennae
when tracing faults with communications.

I have two SWR meters and neither of them specify any freq on them. They
came with a bunch of CB radios that I bought from a guy that was leaving the
country. It is years since I last used them but I do remember that they
didn't give the same readings when both tried in the same antennae/ radio
installation. Maybe they are for different frequencies. I see a visit to our
local communications expert coming up soon!

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Tuning Antenna

[AVLEC]

Pat wrote:
 You can hook a 150/200 watt lightbulb to the antennae lead and even tune
your Xmitter with that load..
I would imagine that any load with the correct impedance would do the trick
as long as it could handle the power. However, try tuning the antennae with
that light bulb???
How did we get from tuning antennae to tuning the transmitter anyway?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: 
To: "KRnet" 
Sent: Saturday, March 03, 2007 6:31 AM
Subject: KR> Tuning Antenna

KR> PUSH-PULL CONTROL CABLES

[AVLEC]

Pete,
I have seen them used on all Jabiru aircraft as well. I was keen on using
them in my project at one time but decided against it because of the much
higher friction they have. The ones used in the Jabiru looked lust like
regular "Morse" or "Teleflex"control cables for marine use. Hope this helps.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Pete Klapp" 
To: 
Sent: Sunday, March 04, 2007 6:24 PM
Subject: KR> PUSH-PULL CONTROL CABLES


> Guys,
> Has anyone looked at using push-pull cables for aileron and elevator
> controls?

KR> 2nd Flight, ZU-DVP

[AVLEC]

Fantastic Jaco! How's the oil temps now?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message - 
From: "Jaco Swanepoel" 
To: 
Sent: Wednesday, February 14, 2007 9:31 PM
Subject: KR> 2nd Flight, ZU-DVP


> HI Guys,
> Piet flew my baby for the second time today.

KR> Congrats Jaco!

[AVLEC]

Well, except for Mark J, I havn't seen a single word of congratulations to
Jaco Swanepoel on the first flight of his beautiful KR2S. For those who did
it privately, good on you! For those who didn't do it at all, shame on you!
Although I have already congratulated Jaco over the phone, I would like to
also congratulate him here on behalf of everybody on the list.
CONGRATULATIONS Jaco!! I am sure it will fly as good as it looks. I can't
wait for you to fly it down to PE for a looksee! For those that havn't seen
his plane, you should take a look at his websight!
As Mark said: "let's hear that YEEEHAAA soon.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> fuel lines

[AVLEC]

Hi guys
I recently took delivery of a 3300 Jabiru motor and a firewall forward kit
for it to be installed in a whisper motor glider.
Here is a factory supplied motor and fitment kit that has the entire fuel
system plumbed with "rubber" fuel hose, barbed fittings and hose clamps.
This is for the suction lines as well as for the pressurised part after the
fuel pumps.
Come to think of it, the 2.0L fuel injected hot hatch (VW GTI thrasher,
sorry Mark I couldn't resist) that I used to have used rubber hose and hose
clamps troughout the system except it had steel pipes under the car for
obvious reasons.
If this is accepted practise by Jabiru and even in high pressure auto fuel
injection systems, why is it frowned upon in aviation?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> 1st Tricycle KR-2

[AVLEC]

Hi Brad
Would it be possible for you to scan any images of the plane and send them
to me please??
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Brad Ankerstar" 
To: "KRnet" 
Sent: Tuesday, January 30, 2007 02:46
Subject: Re: KR> 1st Tricycle KR-2


> Ken,
>
> I found a picture of N24BD in the May 78 newsletter.  Builder was Bill De
> Freze, from Dublin CA. and the gear was retractable.

KR> 1st Tricycle KR-2

[AVLEC]

Mark J wrote:
> Hey Dene,
> Did you buy one of the DVD's with all the newsletters on it? If so, you
> could see it there.

Unfortunately not Mark, It is extremely difficuilt to buy anything which has
a value of only a few $ from someone privately. As I found out a good few
years ago when I tried to purchase a WW video grom you for something like
$10 if I remember correctly. The bank charges were something like three or
four times the value of the video!

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> retract gear pics

[AVLEC]

Thanks to all those who sent me pics of the early retract systems . It
really put my crappy dialup connection to the test!
Looking at those planes makes one realise just how much the KR has evolved
over the years.
Thanks again guys.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Paypal

[AVLEC]

Ronald wrote:
> Do you have PayPal in South Africa?  If so, that is an
> easy way to pay someone.
To tell you the truth Ronald, I have no idea how paypal even works. Never
been there, never tried it out.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Hydraulic pumps

[AVLEC]

Hi netheads
I am looking for a small 12V hydraulic pump to actuate my landing gear. It
must have forward and reverse and preferably hold its own fluid in an
integral tank. I once took a look at a Lancair manual and saw one in it that
would probably be fine.The problem is I don't have access to that manual any
more and I can't remember the manufacturer or model number. I can't find
anything locally.
Any ideas? I know I know, put fixed gear on it right? NO! Just take a look
at John Shafer's plane in flight, it looks all grown up.Besides I have
already built the gear legs.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Hydraulic pumps

[AVLEC]

Hi John
Excuse my ignorance but what is a "TC's KR"
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message - 
From: "Martindale Family" 
To: "KRnet" 
Sent: Tuesday, January 23, 2007 23:46
Subject: Re: KR> Hydraulic pumps


> Try one of the small boat outboard motor hydraulic systems that raise or 
> lower the prop out of or into the water. Works fine on my TC's KR.

KR> Hydraulic pumps

[AVLEC]

Hi Brian
That sounds interesting. Would it be possible for you to send me a pic of
one of them please?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Brian Kraut" 
To: "KRnet" 
Sent: Wednesday, January 24, 2007 05:53
Subject: RE: KR> Hydraulic pumps


> Take a look at some of the autopilot pumps for boats.  They are reversible
> and 12V operated.  I have a couple of them here, but it would cost a lot
to
> ship to you.
>
> Brian Kraut
> Engineering Alternatives, Inc.
> www.engalt.com

KR> Hydraulic pumps

[AVLEC]

Hi Ron
Any pictures?? I never even considdered that a convertible's top would be
hydraulically actuated.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Ron Freiberger" 
To: "'KRnet'" 
Sent: Wednesday, January 24, 2007 17:13
Subject: RE: KR> Hydraulic pumps


> I've had good success using the fully contained pump system used for
> convertible tops, and they seem to all be the same (GM, Chrysler)
>
> Ron Freiberger

KR> New forum

[AVLEC]

Net heads
I have just signed up for the new forum. I have belonged to an identical
forum (Whisperaircraft.com) for a while already and I find it really awkward
to use. My vote will be cast in favor of the "old " existing list for sure.
The only plus is that anybody registered can upload pics of their project or
whatever.
Just my personal opinion.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> ARP head studs ??

[AVLEC]

Guys,
I have just taken a look at my 3100 and it definately has brand new head
studs holding the heads on. They are all screwed into steel inserts. Whether
they are ARP or not I don't know. They have the same black finish and also
have 12 point nuts.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Bad weekend

[AVLEC]

Hi guys
Well this weekend will be remembered as one of the worst (aviation wise) in
a long time.
An aquaintance and fellow Whisper builder lost his son in the crash of a
baby bell helicopter and a local doctor went down in the valley just behind
my house with a Demona motorglider. His passenger was killed and he has yet
to regain conciousness. Aparently he went down at around 16:00 testerday and
the wreckage was only spotted at 17:00. The farmer took four hours to get to
the sight and carried the pilot back, only getting back at about 04:00 this
morning. Quite a sobering thought!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> header tanks

[AVLEC]

I agree 100% with you Mark, I will definately have wing tanks. The decision
is whether to throw out the header or to keep it. I must say that I am
partial to a fuel system supplied by an electric pump (or two). I plan on
putting
tubular tanks in the leading edge linked to the tanks between the spars as
was
suggested in a previous post. Like this there should be even less shift in
CG  as fuel is taken from the wing tanks, providing that the fuel level in
the header remains constant. As for an overflow for the header, the wing
tank vents will be plumbed to enter the header tank at about the full level.
Only the header tank will be vented to atmosphere. That way any overflow
will be sucked down the wing tank breather to return to the wing tanks.
I am considdering running the transfer pump constantly in this configuration
keeping the header tank full at all times, as long as there is fuel in the
wing tanks. A short sight tube can be plumbed into the wing tank breather
line. This will visually show that the transfer pump is running by being
full of fuel and possibly bubbles as the fuel moves in the header. When this
tube goes empty and the header tank level starts to drop you know that the
wing tanks are empty (or the pump has crapped out) and the pump can be
switched off. This is just an idea at this stage though.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Mark Langford" 
To: "KRnet" 
Sent: Sunday, January 07, 2007 22:31
Subject: Re: KR> header tanks


> "Keeping the header tank"...yes, as long as you also have wing tanks or a
> fuselage fuel cell like Bill mentioned.   Header tank ONLY, I'd vote no.

KR> header tanks

[AVLEC]

Dan, I think the shape of the header tank has got a lot to do with it. Mine
is not
a big rectangular, mostly flat bottom shape but rather is very shallow at
the front and sort of swells untill reaching max at a point +/- 170 mm
forward of the spar. At this point it follows the contour of the front deck
on the top surface and forms a point at its lowest point in the centre. The
whole tank slopes down to this point. I had to purchase the XCOM760 radio
because the Microair was just too long and would have come up against the
tank!

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

- Original Message -
From: "Dan Heath" 
To: 
Sent: Sunday, January 07, 2007 23:16
Subject: Re: KR> header tanks


> This got me wondering, so I went to my W Spread sheet to check.  From
full
> to 45 min reserve, mine moves .856" aft.  Header tank only, 12 gallons.

KR> header tanks

[AVLEC]

Larry wrote:
> Test to insure that the return to the wing tanks flow is equal to that
being
> pumped to the header tank or the difference will be pumped out the
> header tank vent.  You will be pressure pumping one direction and
> gravity feed back from basically an open tank (it is vented).

Not quite Larry. The wing tanks will be totally sealed with their vents
entering the header tank at the headers full level (slightly lower than the
overflow/vent outlet). Only the header tank
will be vented to atmosphere. What the pump sucks out of the wing tanks has
to be replaced by something, whether it be fuel or air, or it will suck a
vacuum in the wing tanks. They will be alluminum so I can't see them being
imploded by vacuum. Therefore the fuel returning to the wing tanks
down the wing tank vent lines is actually being sucked down and not running
under gravity feed.
Geez I hope you understand that, I just about confused myself for a second!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> WW manual

[AVLEC]

Guys, if I'm not mistaken the 3100 motor that I purchased from the late John
Monday has ARP head studs fitted to it. I remember this because they are all
screwed into some sort of insert and I thought you couldn't do this with a
3100. It is now 23:25 so I will take a look at it in the morning and report
back. (My workshop is also 100 metres from the house!)
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Colin Rainey" 
To: "KRnet" 
Sent: Thursday, January 11, 2007 21:59
Subject: KR> WW manual


> I don't know what year manual you have, but mine purchased just two years
> ago says NOT to pull studs unless they are damaged because every blown
head
> gasket he WW has seen has been due to pulled studs.

KR> header tanks

[AVLEC]

Thanks Mark J, Larry F & Bill C for the info concerning header tanks. I took
a look at your websights and that cleared up a few things too. Bill sure
makes a good argument for keeping the header tank. I havn't got around to
shopping for a carb yet so I might even need gravity feed for all I know.
Thanks guys.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Larry Flesner" 
To: "KRnet" 
Sent: Friday, January 05, 2007 01:30
Subject: Re: KR> header tanks


>
> >
> >I have been thinking long and hard about the possibility of not
installing
> >my aluminum header tank and just sticking with the two outboard wing
tanks.
> >Dene Collett
> 
>
> Dene,
>
> I have tanks in the outboard wing panels only, no header tank.  Check
> out   http://mysite.verizon.net/flesner/22.jpg
>
> They are 10 inches from the forward spar rearward and run the entire
> length of the outer wing except for the tips.  Each wing holds 12 1/2
> gallon.  With no gravity feed and no engine driven fuel pump, I use
> a small backup battery for emergency power if I lose my main
> electrical buss.  I use dual electrical fuel pumps.  Located between
> the shutoff valve from each wing is a T fitting that goes to the two
> pumps which are plumbed in parallel.  With this setup I can pump
> from either or both tanks with either or both pumps.  My backup
> system  saved the day at the12 hour mark in testing when I lost my main
> electrical buss due to a bad connection in the master switch circuit.
> I'm using capacitance fuel probes that are not very accurate at the
> moment, due I think to a need to re-calibrate.  My shutoff valves are
> located on the forward side of the spar between the pilots legs and
> the fuel pumps are on the cabin floor just below them.  I built a panel
> to cover them.  In the following photo you can just see the ends of
> the shutoff valve handles and the "emergency" (red) panel on the
> bottom of the instrument panel.
> http://mysite.verizon.net/flesner/2.jpg
>
> I like the idea of not having any fuel tanks internal to the fuselage and
> gain the additional advantage of the fuel load not being carried by the
> wing attach fittings.  My C.G. moves forward 1 inch from full to empty
> tanks.  The tanks are well baffled, I get no noticeable sloshing and
> feel no ill effects on handling.  I have never had a problem with the
> pumps priming or pulling fuel from the tanks.  270 hours and no
> problems.  As always, your results may vary. :-)
>
> Larry Flesner
>
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> header tanks

[AVLEC]

Hi Guys
I have been thinking long and hard about the possibility of not installing
my aluminum header tank and just sticking with the two outboard wing tanks.
I did build the tank with its CG as close to the spar as possible. It will
take about 50 litres to fill it.
I would like to hear from those who have header tanks (possibly with a
corvair). How much does your CG change with fuel burn-off? My fuselage is
stock 2S dimensions.
Another problem I have if I get rid of the header tank is the sight guage
goes with it. I had planned on running from the header tank only with a
transfer pump filling the header when necessary. Wing tanks are not full
width between the spars either but rather longer, narrower units keeping the
fuel close to the CG for minimal influence. Provision will be  made to suck
direct from the wing tanks should the transfer pump fail.
Any information would be greatly appreciated.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> balsa instead of foam

[AVLEC]

I have been stuck with a similar problem on my stub wings. As my gear
retracts into the stubs like a lancair and comes up very close to the top
surface I need to make the top skins both strong for stepping on and thin
(1/4" max).
I have come up with the following plan. The areas ahead and aft of the spars
will be standard but the area between the spars gets a special treatment. A
foam core will be hotwired very accurately that fits between the spars. This
core will be covered with cling wrap and then a layer of peelply with its
edges taped to the sides of the core that will be in contact with the spars.
After laying up the stubs in the conventional manner, the core is removed
and the peelply carefully peeled away. A layer of 3mm coremat is then cut to
fit the area between the spars and an extra layer or two of glass laid over
that. This should be strong enough and probably no heavier than using the
standard method. I might even do the outer wings like this.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Mark Langford" 
To: "KRnet" 
Sent: Saturday, January 06, 2007 02:32
Subject: Re: KR> balsa instead of foam


> Pete wrote:
>
> > I think you make those wings too heavy, as you will have to make it
> > quite thick, or you will not be able to sand it to shape.

KR> header tanks

[AVLEC]

Thanks Mark J and Larry F for the informative replies. I have only one
question for Larry, If I read your post correctly, you have a gap of 10"
behind the main spar and then your tank extends rearwards from there. If so
can you give me the reason for the gap. No specific reason, it just seems
strange to leave a gap ahead of the tank in stead of behind it.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> My problem

[AVLEC]

Hi Guys and a very merry Christmas to everyone!

As the subject says, I face a huge problem. On Saturday a brand new six
cylinder Jabiru motor was delivered to me for installation in a customers
Whisper motor glider. Do you think he would tell the difference if I
installed my 3100 corvair instead and kept the Jab for myself.
Seriously guys this motor is truly a thing of beauty. It came with a
beautiful Airmaster full feathering prop as well.
One thing that confuses me is that the manual says that it has a
transistorised ignition but to me it looks like all it has is a dual magneto
ignition (lawnmower style) with each firing 3 times per revolution and the
spark sent to the correct cylinder by the appropriate distributor.
I must admit that I havn't even removed the motor from it's crate yet so I
might be missing something. The wiring diagram even shows the way to switch
the ignition off is to ground the coil. It looks like a lawnmower ignition,
it acts like a lawnmower ignition, therefore I deduct that it must be a
lawnmower ignition. Can anyone shed some light on it for me please.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Kr2s - South Afrcica

[AVLEC]

Hi Andy
I know that plane very well, it is the plane that got me started building my
own version. How many owners has it had since Robby sold it? Is the motor
that you have still the motor that was originally installed? It seemed to be
pretty well put together, except for the work done on it just before Robby
sold it.
- Original Message -
From: Andy Hatting 
To: 
Sent: Tuesday, December 19, 2006 13:50
Subject: KR> Kr2s - South Afrcica

Dene Collett
Port Elizabeth
South Africa
KR2SRT builder
Whisper motor glider assembler
See www.whisperaircraft.com

KR> SANDING ICE!!

[AVLEC]

Guys, I have heard of carb ice before but tonight I experienced sanding ice.
I recently bought a pneumatic dual piston straight line sander which I was
using tonight on a horizontal stabilizer. After a while it started to lose
power and proceeded to spit out what looked like a little stone from it's
exhaust. I was still standing wondering how such a small stone could have
got into the air line when I noticed it was melting!
So guys, watch out for that sanding ice. Air temp was 24deg C and relative
humidity 65%.
By the way guys this thing saves plenty hours of manual sanding and was
cheap as well.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Dragonfly Canopy

[AVLEC]

Mark, Dart Industries here in South Africa now has the worldwide rights to
the Dragonfly and has contracted Acrylform who is also in South Africa to
manufacture the canopies for them. I bought one from them a few months ago
to replace my standard KR bubble. Cost is ZAR2850.00 including VAT.
- Original Message -
From: Mark Langford 
To: KRnet 
Sent: Friday, December 08, 2006 2:46 AM
Subject: Re: KR> Dragonfly Canopy


> Eric KelsheimerTo: "KRnet" 
>
>
> > Can anyone tell me how wide you can go with the fuselage using the
> Dragonfly Canopy? There has to be a limit as to how far it can be
distorted
> and still work?<
>
> The Dragonfly canopy is very flexible.  I guess where I'd start with that
> question would be to find out the width of a Dragonfly airplane, and then
> add about 4"-6" to that, depending on what you want the canopy to look
like.
> That will get you to at least 8" wider than a KR, which ought to be way
more
> than enough.  I have no doubt that you could open it up to 60" wide, but
it
> would look stupid.   My personal answer to that question is that it will
go
> plenty wide enough to look good and work fine, and wider than you'd need,
> unless you and your passenger are huge, in which case, you are building
the
> wrong airplane.
>
> Last I heard these were only being made in Australia or somewhere, do
maybe
> you need to look at Pulsar canopies or something similar.  There are
plenty
> of canopies out there that'll be as wide as you want.  Take an RV for
> example...
>
> Mark Langford, Huntsville, Alabama
> see KR2S project N56ML at http://home.hiwaay.net/~langford
> email to N56ML "at" hiwaay.net
> --
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

Re: Réf. : KR> Australian query

[AVLEC]

Hi Serge
Sorry for getting back to you only now, I kind of forgot I had to reply to
you. I was told that Eric had moved to Australia but later found out that he
had changed his mind and stayed here. Jaco Swanepoel in Pretoria just bought
a set of aluminuim barrels from him for a motor that he is building for his
KR.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Serge VIDAL" 
To: "KRnet" 
Sent: Thursday, November 09, 2006 01:03
Subject: Réf. : KR> Australian query


Hi, Dene.

That would be Eric Addison, from Springs, right? He is the one who made my
engine.

I did not know he was here. Small world, eh? Norman Stapelberg told me he
was thinking of moving.

Just E-mail me off net if I can help.

Best regards,

Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France

KR> "lawnmower" ignition

[AVLEC]

Brian
The aerovee lawnmower ignition has no method of advance at all. They use it
as the backup ignition to the electronic unit which also has no advance but
will produce a spark at low revs. I have a friend who recently had the
electronic unit fail and in the process of finding the fault cranked the
battery down to a point where it would no longet turn the motor over. Trying
to prop start it on the mag system was futile as he just couldn't spin it
fast enough to make it produce any spark. It aparently needs somewhere
around 300rpm.
We have just gone through this whole ignition thing on corvaircraft but I
will risk it again. Take a look at the system that is installed on Serge's
plane. It is a simple transistor controlled coil ignition triggered by an
inductive pick up. It also sports a ready made centrifugal advance
mechanism. This system has been used here by many builders and has been
proven during more than 1500 hours of flight without a single failure on VW
motors as well as a honda auto conversion. It does need a 12V supply though.
Take a look at http://home.hiwaay.net/~langford/corvair/ignition/dene/
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Brian Kraut" 
To: "KRnet" 
Sent: Thursday, November 23, 2006 02:32
Subject: RE: KR> "lawnmower" ignition


> Thinking about it a little more I do see one problem with a lawnmower type
> of iginition.  Lawnmowers and weed whackers have the ignition set pretty
> much near top dead center.  It makes them a lot easier to start and is
also
> one of the reasons why you have a fairly good sized engine to make the
> little power that they do.  The only way to get the power you should and
> also make it start easy is with something like an impulse coupling.  I
> imagine that the Aerovee has some kind of way to advance the timing built
> in, but once you have gone through all the trouble of making something
that
> works and is reliable you might as well just have gone with a regular
> aircraft magneto.
>
> I guess that something like an electronic ignition with spark advance for
> normal use and for starting with a quick and dirty lawnmower type set with
> fixed timing for a backup is food for thought.
>
> Brian Kraut
> Engineering Alternatives, Inc.
> www.engalt.com
>

KR> Australian query

[AVLEC]

Is there perhaps anyone living in Australia that has come across a guy by
the name of Eric Edison. He comes from South Africa. If you do run into him,
please let me know. Thanks
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

Re: Réf. : KR> (no subject)

[AVLEC]

Serge Wrote:
Hi, Mike.

My (very biased) advice is: if you can locate a Type 4, forget the Types
1, 2 and 3. The Type 4 is an extensive redesign, solved most of the
reliability problems of the preious ones, the case was built in a better
alloy. Only problem is to find one, because much less Type 4 were
produced.

Just to add to this, I have been led to believe that the heads on the 1700
are of better quality than the 2000 as the 2000 heads had a reputation for
dropping valves. They can be identified by the shape of their exhaust ports.
One has a round port and the other has a semi rectangular port. I think the
round ones belong on the 2000 but I am not certain.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> What RPM should I get?

[AVLEC]

Hi Willie
Are you the owner of the green KR with the smashed prop that I saw on
"avcom"
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Willie van der Walt" 
To: "KRnet" 
Sent: Saturday, October 14, 2006 11:46
Subject: Re: KR> What RPM should I get?


  What should the static RPM be on a Limbach 80Hp motor? I used a 52" x 47°
and with brakes on the max. RPM @ 1400vt went to 3000 RPM. Need to get a new
prop made after spinner departed.




___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html

KR> vw performance

[AVLEC]

Hi Hennie
For an ignition system take a ride down to your nearest second hand
motorcycle parts dealer and ask for the complete ignition from a Honda
CB750F or CB900F. Be sure to ask for the centrifugal advance mechanism from
the end of the crank as well. I have seen this system work in a KR2 for a
few hundred hours without so much as a hiccup (which Serge now owns and I
flew in for about 8 hours
total), a half type IV VW and now replacing the brand new aerovee system in
the new Whisper Express. I am sure you will be 100% happy with its
performance, ask Serge. (You shouldn't pay more than R800.0 for the lot)
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> VSI

[AVLEC]

Hi Guys
I have just taken delivery of a UMA VSI unit and noticed something that
needs attension. The needle does not sit on zero. If I place my finger over
the rear port and apply slight pressure it will zero or even show a descent
depending on the amount of pressure applied. This is understandable and
proves that it is working I suppose. It has an adjustment screw in the
bottom left mounting screw position. Would this be the zero adjustment for
the unit or something else? The literature that came with the unit is of no
help in this regard at all.
For interest sake, does anybody know exactly how these things work. I know
it measures the rate of change in static pressure but then the needle should
return to zero or at least move in that direction if I keep a constant
pressure on the rear port with my finger.
Thanks
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> VSI & XCOM760

[AVLEC]

Hi guys
Thanks to those that responded to my question regarding the VSI, it is now
zero'd and works just fine.
Along with the VSI, I also got an XCOM760 radio. I managed to get it powered
up today to see if it worked properly. Well to say I was impressed is an
understatement! This thing can pick up aircraft still on the ground at our
local airport about 50 km away.This is with a dipole antennae that I made
and taped to an old fishing rod, This is no big deal unless you know that I
live at the foot of a mountain that stands between us. I have an old king
valve set that can't even pick up the tower at the airport from here.
I can't wait to get two headsets plugged into it to test the VOX intercom
and the aux music input.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Landing KR's

[AVLEC]

I have heard so much about "Stick and rudder", where can I get it?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message - 
From: 
To: 
Sent: Sunday, September 17, 2006 05:45
Subject: KR> Landing KR's


> The single most helpful resource for me when trying to get comfortable
> landing my first KR was the chapter called "The Landing" in Wolfgang
> Langewiesche's book, Stick and Rudder.  

KR> RV versus KR control responsiveness

[AVLEC]

This is just plain music to my ears! I can't wait to get that 3100 demon of
mine fired up.
Randy Smith wrote:
" I had an RV-7 try to chase me the other day. I would
> slow down to 150 mph and he would come up on my wing.
> I would let him settle in and the start slowly moving
> the throttle forward at about 170 mph He would peel
> off. I found out from some folks on the ground later
> that he told them he could not keep up".
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> build times

[AVLEC]

Hennie, I have heard of a guy here in P.E that built his in his
apartment/flat living
room on the seventh floor. I don't know how long it took but when it was
finished they lowered it down from
the balcony! I"m not sure what that says about dedication but it sure says a
lot about desperation.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Hennie van Rooyen [HQP]" 
To: "KRnet" 
Sent: Monday, September 04, 2006 09:32
Subject: RE: KR> build times


>
> Hi all,
>
> In the mid 1980's I visited a guy in Vanderbylpark, South Africa. His name
was Johan - I cannot remerber his surname.
>
> He built his KR2 in a garage of a flat complex (you know how small those
are) in less than eight months. Right from initial start to finish and from
plans only. I saw his aircraft and it looked like any other KR2, thus the
workmanship was good.
>
> This was on a part time build basis as he had a normal everyday job, same
as everyone else.
>
> He did inform me that he spent every evening and weekend day building
though - now that's dedication indeed!
>
> Regards,
> Hennie
>
>
>
> My plane was built from scratch to flying status with day VFR only
> instruments and handheld radio in 3 years, by a man in OK.
> I could have completed Class B mods in one month if I stayed with it
steady,
> but it was one year later, along with Day and Night VFR mods.
>
> I believe Bill Clapp's site states something on the order of 8 to 9 months
> from boat stage with spars to flying.
>
> Colin Rainey
> brokerpi...@bellsouth.net
>
> ___
>
> --
---
> This e-mail is confidential and is for the addressee only.
> Please refer to http://www.kumbaresources.com/email-disclaimer for
important disclaimers.
> --
---
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> Expanded foam

[AVLEC]

Take a look at the wings of the Whisper motor glider that I assemble, they
are 100% 24DV polystyrene with a single uni-directional glass spar. These
wings were tested to 10.6G by the designer in front of the CAA inspectors
and thereafter to over 11G to see where it would fail.The test rig collapsed
under the weight of
all the sandbags before it failed. Although the wing had a few ripples in
the skin
afterwards, the structural integrity of the wing was still intact. the wing
is made from a series of hotwired cores stuck together with micro around the
premade spar and then glassed over with a 410g +/- 45deg layer glass and a
sacrificial 200g layer at 0/90. No sanding necessary! They are 8 metres long
each.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Jaco Swanepoel" 
To: 
Sent: Friday, August 11, 2006 10:06
Subject: KR> Expanded foam


> Hi Guys,
>   When I started building the wings, The EAA inspector on the project
preffered that I use 32DB Polystyrene. It is extremely hard. I had it
pre-cut by the supplier and glued into place. I used a belt sander with
100grid paper to profile it. That was a huge job. The 32DB does not make
those little balls like normal Polystyrene. It makes dust when sanded. I
could not press a hole in it with my finger. There are some photos on my
website under the wings menu.
>   http://www.mykitlog.com/users/index.php?user=jacoswnpl=70
>
>   Regards,
>   Jaco Swanepoel
>   Pretoria
>   South Africa
>   KR2S, ZU-DVP
>
>
> -
> Stay in the know. Pulse on the new Yahoo.com.  Check it out.
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> LCD problems

[AVLEC]

Serge
Just a short note on your LCD problem. Yesterday I bought one of those
electronic barometers that has temp, time date, and weather forecast. When I
removed it from its wrapping it had a clear protective strip stuck over the
display with a fake display printed on it. As I removed this strip the same
symptom appeared on the display. I at first wanted to throw the thing
against the wall but decided to apply a bit of slight pressure to the
display with my thumb and wala the display cleared perfectly and worked fine
after that.
Just as well I never threw it against the wall because it turns out that it
didn't have a RH readout which was my primary reason for needing one of
these things. Back it goes tomorrow!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Serge VIDAL" 
To: 
Sent: Tuesday, August 08, 2006 13:46
Subject: KR> Drilling template for Precision Vertical Card Compass


> I just made a printable paper template for the Precision Vertical Card
> Compass. As usual with me, it's a Microsoft Powerpoint file. I'm not a
> draughtsman by any account, so precision not garanteed. But it's free, so
> anyone interested, just shoot.
>
> (And by the way, could anyone tell me if that compass is going to work
> well in the Southern Hemisphere, although it is a Northern Hemisphere
> P/N?)
>
> Serge Vidal
> KR2 "Kilimanjaro Cloud"
> Paris, France
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> Don Reid

[AVLEC]

Hi Guys
Sorry to waste bandwidth but would Don Reid please respond privately to
this. I don't have your address and would like to ask you a question or two
regarding airfoils, which I think you are probably the most qualified to
answer.
Thanks
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> yucky day, another great flight!

[AVLEC]

Mark PLEASE STOP!
I am pulling 10-12 hour days assembling other peoples Whisper motor gliders
while my nearly structually complete KR hybrid stands in the corner just
begging for some attension.
I know your aim is to motivate others like myself to make sawdust but this
borders on torture!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Mark Langford" 
To: "KRnet" 
Sent: Sunday, July 30, 2006 05:45
Subject: KR> yucky day, another great flight!


> NetHeads,
  That flight was such a blast.
Super calm air, absolutely nobody else flying or on the radio (am I the only
guy with a firepole leading into my cockpit?), and I never backed off on the
throttle after takeoff or got over 2000l.  50 minutes of shear bliss.  I
couldn't resist a flyby of M38 at 210 mph, because they always say it sounds
so sweet on takeoff.  What about at 210 mph?  My guess is just short of a
sonic boom, at least for what passes for a sonic boom in Hazel Green,
Alabama!  Did a few laps of the local drag strip, racing the cars and giving
the spectators something to think about, then buzzed Jim Hill's new house
construction to see if the electrician had installed electrical boxes yet.
I had to climb just to get to pattern altitude!  That flight had me
hollering all the way down, and I'm still stoked to the max.  You guys that
are buildingyou have no idea what awaits you...
>
> Mark Langford, Huntsville, Alabama
> see KR2S project N56ML at http://home.hiwaay.net/~langford
> email to N56ML "at" hiwaay.net
> --
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> flaperons and Oshkosh

[AVLEC]

Hi guys
I have been reading about the huge benefits that Jeff Scott is getting from
his new flaps and was wondering if anybody had ever tried converting their
ailerons to flaperons. I will not be able to use the stub trailing edges as
flaps due to all my controlls being situated in them. Because of the retract
system I will have, there is no place between the spars for control cables.
The ailerons will be actuated by push rods from inside the fuselage behind
the rear spar.
I suppose you would need some kind of mixer to achieve this but I don't know
what kind of effect this will have on the aircraft's flight characteristics.
By the way I am using the AS5048 at the root going to the 5045 at the tip.

Those of you going to Oshkosh should keep a look out for any kind of
promotion for the Whisper motor glider. I believe that Jabiru might have
something to do with it.

Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Hennie Van Rooyen

[AVLEC]

Hennie, Since you live in Pretoria, do you perhaps know of any reputable
companies up there that I could send my corvair crank to to be nitrided? It
took me literally months to get hold of this motor and to get it here, I
want to be sure the crank will be in good hands.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> steel and ally

[AVLEC]

Can anyone tell me what differences there are between 4130, 4140 to EN19 as
well as the phisical differences between 6061 and 6261 ally.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> steel and ally

[AVLEC]

See nothing in Spruce catalogue regarding 6261 or EN19 !!
The reason I ask is that for my "soft drive" prototype on my corvair I will
have to machine the housing from 6261 since we can not get 2024 or 6061
here. Also, the prop hub/spline shaft will have to be machined from EN19 and
not 4130 or 4140 since we do not get these two grades here. Once I am happy
with what I have, I will import some 2024 or 6061 as well as 4140 for the
hub/spline shaft.
I just need to know if the ally will be up to the task. I am not too worried
about the steel as I know of a few planes flying here with EN19 hubs on VW
motors with many hours on them (Hi Serge). Mine will not fly in prototype
form though untill proper materials are used for all parts.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "phil brookman" 
To: "KRnet" 
Sent: Wednesday, June 21, 2006 20:52
Subject: Re: KR> steel and ally


> see aircraft spruce catalogue
> p

Re: Réf. : KR> steel and ally

[AVLEC]

Hi Serge
Actually I say "ally" as short for aluminium. I havn't looked on their site
but the catalogue says nothing of our local grades.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Serge VIDAL" <serge.vi...@sagem.com>
To: "KRnet" <kr...@mylist.net>
Sent: Wednesday, June 21, 2006 21:17
Subject: Réf. : KR> steel and ally


Dene,

I suppose you mean alloy, not ally?

There is a lot of info about steel and aluminum alloy grades  in the
Aircraft Spruce catalogue. Which you can download as a PDF from their
site.

Hope this help.


Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France





"AVLEC" <av...@telkomsa.net>

Envoyé par : krnet-bounces+serge.vidal=sagem@mylist.net
21/06/2006 20:55
Veuillez répondre à KRnet
Remis le : 21/06/2006 20:44


Pour :  "KRnet" <kr...@mylist.net>
cc :(ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> steel and ally



Can anyone tell me what differences there are between 4130, 4140 to EN19
as
well as the phisical differences between 6061 and 6261 ally.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net


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KR> Custom KR prop

[AVLEC]

Hi guys, been off the list for a while.
I have finally taken delivery of the 3100 motor that I bought from John
Monday (Thanks John) and was reading through an old issue of Contact! that
John included in the crate(thanks again John). There is an article on Paul
lipps and his "ELIPPSE" propellor which made for very interesting reading.
Would it not be possible to get him to design a custom prop for the vair
powered KR's just like the new airfoils were made for the KR. There could be
a design for the 2700 guys and one for the 3100 guys which should be pretty
close to being identical. It might look weird but the numbers on his own
Lancair speak for themselves. Look what it did for the biplane Reno racer! A
KR could be chosen as the "average "drag model and the numbers calculated
from that. I know the props made by Catto Props (the guy that carved the
prop for Paul)are fairly pricey but what about those of us not intimidated
by the task of carving one ourselves?
There might be a weight problem but I don't think that should concern the
guys switching to the fifth bearing, and it shouldn't make any difference
with my soft drive setup either.
Just a thought, it sure would look good to have one of those perched on the
front of my KR!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> rc servo diagram

[AVLEC]

Hi Jaco
Don't have a diagram for you but was it a pic of your KR cutting through a
beacon "Red Bull" style in one of the latest publications, could have been
"African Pilot".
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Jaco Swanepoel" 
To: 
Sent: Sunday, June 11, 2006 19:49
Subject: KR> rc servo diagram


> Hi Guys,
>   I read on the archives that some of you have a schematic diagram to be
able to control a rc servo for the trim tab. I am desperately looking for
such a diagram. Could you guys please Email what ever idea you have directly
to me.
>   Thanks,
>   Jaco Swanepoel
>   Pretoria
>   South Africa
>   KR2S,  ZU-DVP
>
>  __
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> Lost KR/ Corvaircraft Family Member

[AVLEC]

Hi gang
As everyone knows, I was the one who bought John's 3100 motor. He was an
absolute gentleman throughout our negotiations and went out of his way to
supply me with a lot of stuff that was not part of the deal. He also built a
crate of extreme strength to make sure that the motor arrived in perfect
condition which it did. I received an e-mail from him just four days ago
regarding the dipstick tube which seemed to have gone awol. In case I can't
get a message through to his family, would someone please pass on my sincere
condolences to them.
Thanks
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original Message -
From: "Mark Langford" 
To: "KRnet" 
Sent: Sunday, June 11, 2006 05:41
Subject: Re: KR> Lost KR/ Corvaircraft Family Member


> Yep, John was "real people".He was one of the guys standing around the
> keg last year, and years before, and at the bar at the hotel.  A real
> character.  Always smiling, always happy to just to be there.  Troy
Petteway
> told me a couple of months ago (when he found out John had sold his KR
> project and plane) to make sure John showed up at the Gatherings from now
> on, because he was a lot of fun to be around.  I emailed John, and he
> assured me he'd be there this year too.  He will be missed...
>
> Mark Langford, Huntsville, Alabama
> see KR2S project N56ML at http://home.hiwaay.net/~langford
> email to N56ML "at" hiwaay.net
> --
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> Whirlwind propellors

[AVLEC]

Hi gang, Has anybody had any experience with the Whirlwind constant speed
propellor?  It is very lightweight and probably doesn't weigh much more than
some of the fixed pitch props being flown.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> Serg's mount spacers

[AVLEC]

Hi Serge
I know Rob once told me the reason for those spacers but for the life of me
I can't remember what it was.(knowing him, it was the only available
material at the time). I will probably see him within a few days and
will ask him then. Pity I didn't download e-mail yesterday because I was as
his house yesterday.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net

KR> engine design

[AVLEC]

Talking about engine design, ignition control and detonation control, Take a
look at the engines built by  "Light Power Engine Corporation". These motors
can be run at compression ratios up to 14:1 without detonation occurring.
Quite an advanced motor!
They can feature such things as carbon push rods, carbon roller lifters,
flourocarbon head gaskets, carbon engine cases, composite valve covers,
variable duration and lift valve trains, carbon pistons, ceramic cylinders,
etc. WOW! See: Alternative engines by Mike Myal Vol 1
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net

KR> Corvair ignition

[AVLEC]

Colin, if you had the oppertunity to see the system in Serg's plane, you
would see how simple it really is. You literally just remove it from the
donor motorcycle and install it on the motor of your choice( any motor, any
number of cylinders. By just seperating the power supply to the seperate
ignitions, you end up with a totally seperate ignition system for every two
cylinders (for odd number of cylinders just leave off one of the plug
leads). In the case of a VW I doubt that you would be able to stay in the
air with two cylinders but with the corvair 3100 that I should be getting
soon, if one of the three independant ignitions should fail I would be left
with the equivalent of an out of tune type IV VW to take me home! That
system in Serg's
plane has done probably in the region of 600 hrs + without as much as a
hickup. It also needs zero maintenance except to check the electrical
connections now and then.Thats reliability in my book! It even has
centrifugal advance!! It
doesn't get much simpler than that.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net
- Original Message -
From: "Colin Rainey" 
To: 
Sent: Sunday, December 25, 2005 02:42
Subject: KR> Corvair ignition


> Dene
> If you are going to go to that much trouble with the ignition system, when
there is very little faults with the original system, and a Petronics
electronic update from either Summit Racing or Clark's Corvairs will
eliminate any other normal failure.  Modern electronic ignition systems do
not just "quit" as in days gone past, if it is a quality system.
>
> You can use an external GM crank sensor, or cam sensor, and install a 3
tiered trigger system, then have 3 GM late model capacitive coils which is
what they use on the Aerovee VW engine, and trigger each one individually,
hooked up to the 2 companion cylinders so that one is firing on the exhaust
stroke while the other is firing on compression stroke.  The only problem
with that type of simple system is it is fixed timing, unless you figure out
how to incorporate an ignition module.  Since caps, rotors, and normal use
distributor shafts don't fail in use suddenly, but rather deteriorate slowly
over time, a pilot will notice they are wearing out before failure.
Therefore, that is ALOT of engineering to go through for very little pay
off, and will definitely hurt peak performance.
>
> Most sudden failures of ignition systems today are actually systems that
have been ignored, and driven with for some time, until the vehicle will not
operate any more.  From my observation here, KR pilots are ALOT more
conscientious and will abort takeoffs and determine the problem, instead of
flying anyway, and "worry about it later" attitude.
>
> If it makes a difference I will be flying behind a single ignition system,
of electronic type, and vacuum advance distributor, and expect with regular
maintenance and attention to have the same reliability as I have in my
driveway...
>
> Merry Christmas from our family to yours, including our "new baby boy"
Zeus, a 2 pound miniature Doberman/rat terrier mix.
>
> Colin Rainey
> brokerpilot9...@earthlink.net
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

Re: Réf. : KR> Serge's ignition

[AVLEC]

Hi Serge
I spoke to Rob this morning and he says that he had it wired like that all
the time (through a double pole switch). The only thing I would have changed
in his case would have been to install a second battery so that the 12V
supply could be changed out as well. When you talk about a relay, it is
really a solid state device and not an electro mechanical relay.That
ignition must be very light on
power, he says that he ran the motor without an alternator for the first
100hrs or so without ever recharging the battery! Just how accurate his
memory
is I don't know. His address is: 158 Villiers Road Walmer Port Elizabeth
6056.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net
- Original Message -
From: "Serge VIDAL" <serge.vi...@sagem.com>
To: "KRnet" <kr...@mylist.net>
Sent: Tuesday, December 27, 2005 11:02
Subject: Réf. : KR> Serge's ignition


Hi, Dene.

Yes, that is a very interesting thought indeed, and very seducing too.
Although I won't go that route at this stage, because my electrical system
has not been built so as to be modified easily. There are two of these
fancy aircraft connectors with crimped pins  to go through... (leftovers
from the Rooivalk attack helicopter development program!)

I can see no reason why this electronic ignition system won't work with a
six cylinders. I would strongly recommend that you install two sets of
pick-ups (after all, we don't know how well these components age), but I
agree one spark plug per cylinder and one set of coils should do the
trick.

By the way, have you got a mail address for Rob Van der Merwe?

Happy new year,

Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France





"AVLEC" <av...@telkomsa.net>

Envoyé par : krnet-bounces+serge.vidal=sagem@mylist.net
24/12/2005 12:34
Veuillez répondre à KRnet
Remis le : 24/12/2005 12:25


Pour :  "KRnet" <kr...@mylist.net>
cc :(ccc : Serge VIDAL/DNSA/SAGEM)
Objet : KR> Serge's ignition



Hi Serge
I was just thinking about your primary ignition system (the one with the
centrifugal advance). You actually have two seperate systems there which
are joined by one common mode of failure, the switch. If you changed the
switch to a
double pole switch with two seperate positive supplies and a seperate
positive supply from the switch to each "system" you will in effect have a
seperate ignition system for each pair of cylinders. I suppose the same
goes
for your secondary ignition. I don't know how well the plane will fly on
two
cylinders but I suppose that is better than none at all. If anything it
will
improve your glide slope!
I plan on using an identical system on my corvair 3100 , only mine will
have
an extra pickup, an extra amplifier and an extra coil. The pickups will
just
have to be arranged 120 deg apart in stead of 180 and it should work just
fine. I don't think I will even install a secondary ignition as you have
because I think the KR will be able to stay in the air and maintain
altitude
just fine on four cylinders should I lose one ignition. Now to find a
triple
pole toggle switch if there is such a thing.
To all, have a merry christmas and a prosperous new year.

PS. Steve from Zambia is now living here in Port Elizabeth and has been in
contact with me for the past three weeks. I had a brew with him yesterday
and he says Hi to all on the list. As soon as he has his computer set up
and
an internet connection he will join us on the list.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net



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KR> Timing retard

[AVLEC]

Good info Colin, I will definately keep that post for future refrence. I had
no idea that you could not just leave off one plug lead and use just the
other(never tried it and probably never will). Is it possible to use the
same system to fire single output coils on say a five cylinder engine. Each
cylinder would act independantly with its own ignition system. The five
pickups
would also have to be spaced at 72deg apart. I would imagine that this
applies to any engine with any number of cylinders.( There's a thought. Six
independant ignitions on a six cylinder corvair motor). These new generation
auto coils are really small so the weight penalty would be minimal. You seem
to know lots about this so what do you think, would it work?

Serge, have you ever timed the motor with a timing light to see what the
idle timing is and how much advance you get out of it at what RPM. At what
RPM  does it reach max advance?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net
- Original Message -
From: "Colin Rainey" 
To: 
Sent: Wednesday, December 28, 2005 17:29
Subject: KR> Timing retard


> Serge and Dan
> You are correct Serge, the retard I am referring to is the retard AFTER
the engine is running, especially at rpm.  Virtually all systems start at
some "base" setting, and if this is too high, hard start. If it is just base
timing low, then easy starting.  When cranking a computer controlled engine
with the scanner hooked up, you can watch the computer actually retard the
timing to 20 degrees ATDC to allow for second rotation start. As soon as the
engine gets over 400-600 rpm, depending on design the computer will advance
to around 28 to 34 degrees usually, just like the Great Plains, and will
hold back the timing from there until closed loop or hot running mode, at
which time it will utilize full spark advance programming from there. Why
mention all this?  What does this have to do with a KR or Corvair?
>
> Well, for every process that we now know to be electronic, it once was
performed mechanically.  Therefore, everything that I have mentioned that
the computer does now, was handled by a mechanical device in the Corvair
engines of the past.  What my particular installation is attempting to do is
to update with modern parts, the mechanical processes that Chevrolet
developed for the engine, that were so successful, so that my airplane
engine will run as well as the car engine did, just spinning a prop.  The
distributor was equipped with mechanical spark advance through the use of
weights attached to the breaker plate under the points. These centrifugal
weights would sling out causing the plate to "advance" the timing, usually
between 12 and 14 degrees, depending on the strength of the springs and the
actual weights.  This advance is rpm dependent, and will occur every time at
a given rpm.  Base timing was usually set somewhere between 4 and 8 degrees
which gives a total MECHANICAL advance of 16 on the low side to 22 degrees
on the high side.  Vacuum advance was used to advance the engine the final
10 to 14 degrees for best performance.  This advance only occurs when the
rpms are more constant, deceleration, and at idle. Just like the mechanical
advance, it is not present when cranking, so the engine only cranks on base
timing.  When accelerating vacuum advance is lost, and the timing retards to
mechanical advance only to prevent detonation, since the combustion chamber
temperature will spike due to the sudden introduction of all that air. You
will notice that fixed timing systems try to compromise between best
performance, and detonation protection with settings around 26 to 28 degrees
max.
>
> Problem: aviation carbs have no hookups for vacuum signals on their carbs.
This is the reason I am using a down draft Rochester Monojet carb.  It has
both ported (vacuum on acceleration only) and manifold vacuum (vacuum at
constant rpm).  If you do not use vacuum advance , then you will have to
recurve your distributor like WW does, and watch your temps closely. You
will not be able to allow your engine to get as hot as the car did due to
the effect on pre-ignition and detonation that this has, and you will almost
assuredly have to use 100LL.  Premium fuel will not give enough detonation
protection. Remember, these engines were designed when 100 octane fuel (with
lead) was common at the pump, and were designed for its use.  When the lead
went away, timing had to better controlled, some cars even equipped with
spark retard modules, and compression ratios dropped until advancements were
made it overall computer/engine control.
>
> Oh that "relay" is probably a simple transistor module triggering the
coil, which is what most electronic ignitions use. The other parts of the
ignition module handle ignition impulse modification if needed for computer
use, and advance if desired by the designer. Since it is 

KR> Serge's ignition

[AVLEC]

Hi Serge
I was just thinking about your primary ignition system (the one with the
centrifugal advance). You actually have two seperate systems there which
are joined by one common mode of failure, the switch. If you changed the
switch to a
double pole switch with two seperate positive supplies and a seperate
positive supply from the switch to each "system" you will in effect have a
seperate ignition system for each pair of cylinders. I suppose the same goes
for your secondary ignition. I don't know how well the plane will fly on two
cylinders but I suppose that is better than none at all. If anything it will
improve your glide slope!
I plan on using an identical system on my corvair 3100 , only mine will have
an extra pickup, an extra amplifier and an extra coil. The pickups will just
have to be arranged 120 deg apart in stead of 180 and it should work just
fine. I don't think I will even install a secondary ignition as you have
because I think the KR will be able to stay in the air and maintain altitude
just fine on four cylinders should I lose one ignition. Now to find a triple
pole toggle switch if there is such a thing.
To all, have a merry christmas and a prosperous new year.

PS. Steve from Zambia is now living here in Port Elizabeth and has been in
contact with me for the past three weeks. I had a brew with him yesterday
and he says Hi to all on the list. As soon as he has his computer set up and
an internet connection he will join us on the list.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net

KR> aerovee question

[AVLEC]

Hi gang
We over here have a problem with a new zero time aerovee motor that is
fitted to the new Whisper express prototype.
I am no VW expert, Mark L or someone else might be able to shed some light
here.
If you look at the motor from the prop flange, the prop hub exits the case
off centre by approx 0.3mm. (a 0.3mm feeler guage can be squeezed into the
gap). It is quite noticeable at a glance. It also leaks oil from this area
although it runs fine.
I suspected a faulty line bore but surely if the line bore was off centre to
the case split line, it would still be concentric to the crank since the
crank runs in bearings which are located by the line bored case??? Any
suggestions.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net

KR> big boy 3100

[AVLEC]

John I will take that motor if it is still available. Will you ship it to
South africa?
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net

KR> aerovee question

[AVLEC]

William
The type 1 motor does not have a seal at that end of the motor. It has an
internal slinger. The pulley (in this case the prop hub) also has a shallow
screw thread cut into it that  "pumps" the oil back into the motor much like
an archemedes screw pump.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net
- Original Message -
From: "Scott William" 
To: "KRnet" 
Sent: Friday, December 16, 2005 21:39
Subject: Re: KR> aerovee question


> Just my $.02.
>
> Are you sure the hub isn't exiting THE SEAL off
> center?  I've seen this before. You may just have a
> damaged/mis-installed seal.
>

KR> big boy 3100

[AVLEC]

Hi John
To answer your questions:
I can pay for it by going to my local bank and organising a direct transfer
into your bank account. All that I will need is your banking details. I have
just done a similar deal with a guy in australia
and it is a simple task. The funds were available to me the same day.
I would prefer it if you called an aeroplane engine since aircraft parts are
duty free here.What extra peperwork is involved if you call it an aircraft
motor? We just pay VAT on the value.
I am sure that the shipping won't be a problem.

I would like to make a special request to you to considder the fact that
corvairs are UNAVAILABLE here period, unless you will settle for a 1960/1
model. I have been waiting for ages for just such an oppertunity and am sure
I won't be so lucky to find a motor like this for a long time to come. My
KR2SRT is just about ready to hang a motor from its firewall and I am
willing to delay the finishing of my plane just to have a 3100 corvair under
the cowl. With all due respect, the other guys have all the oppertunities
that you and others have had to have a motor like this built LOCALLY or
build it themselves. The only oppertunities I have are ones such as this.
I am sure we can come to some sort of agreement.
It might be difficuilt to organise anything now, being so close to Christmas
and new year, but I'm sure I could if I had to.
I would really appreciate it if you could wait untill after new year as I
have tons of work to finish before the end of the year and havn't even had
the time to get out of the workshop to buy my wife a Christmas present!
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net
- Original Message -
From: 
To: 
Sent: Saturday, December 17, 2005 00:06
Subject: Re: KR> big boy 3100


>
> A couple quick questions for you... how would you pay for it??
>
> There is another guy from Brazil that is interested in it and he has not
got
> all his paperwork done and was looking at mid January, but he had it set
up
> so I would crate it and deliver it to the Long Beach, CA dock and he would
pay
>  for shipping and all I had to do is drop it off.
>
> I have local people interested in it as well... but I definitely recognize
> your name as a long time KRNet guy so I do feel a little more comfortable
if I
> have to ship it out of the country,  but I also need it to be a little
> easier for me too!!! so if you can do the paperwork for customs or
whatever...
> (don't want to call it an airplane engine .. just a car engine for the
paper
> work)
>
> Let me know.
>
> Thanks,
> John Monday
>
>
> In a message dated 12/16/2005 11:24:59 AM Pacific Standard Time,
> av...@telkomsa.net writes:
>
> John I  will take that motor if it is still available. Will you ship it to
> South  africa?
> Regards
> Dene Collett
> KR2SRT builder
> South  africa
> Whisper assembler
> See: www.whisperaircraft.com
>
> mailto:  av...@telkomsa.net
>
>
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> aerovee question

[AVLEC]

Hi Jeff
I have gone through the manual as well as viewed the DVD that comes with the
motor but there is definately no external seal on the aerovee motor.
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com

mailto: av...@telkomsa.net
- Original Message -
From: <jscott.pi...@juno.com>
To: <kr...@mylist.net>
Sent: Saturday, December 17, 2005 23:55
Subject: Re: KR> aerovee question


> Dene,
>
> That is the problem.  Several Prop Hubs eliminate the "screw" seal and
> have a rubber seal added externally to the case.  Often times they leak.
>
> Jeff  Scott
>
> On Sat, 17 Dec 2005 22:41:06 +0200 "AVLEC" <av...@telkomsa.net> writes:
> > William
> > The type 1 motor does not have a seal at that end of the motor. It
> > has an
> > internal slinger. The pulley (in this case the prop hub) also has a
> > shallow
> > screw thread cut into it that  "pumps" the oil back into the motor
> > much like
> > an archemedes screw pump.
> > Regards
> > Dene Collett
> > KR2SRT builder
> > South africa
>
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>

KR> missing subject lines

[AVLEC]

Hi guys
Regarding my problem with missing subject lines, only the subject lines of
mail originating from krnet or corvaircraft are missing. All other e-mail
received including spam and other private e-mails come through no problem.
This leads me to believe that the problem is associated with something on
these servers. I have recently activated an alias e-mail address,
unsubscribed under my old address and then re-subscribed under my new alias.
It would appear that I am still getting mail addressed to the old address as
I get two of each message from both groups, one addressed to the old address
and one to the new address. Somehow this has something to do with the
problem. I have never altered anything in my profile for either group so I
can't imagine that it is just a setting there (I could be wrong). Any other
advice would be appreciated.
Regards
Dene Collett
KR2S builder
Freelance whisper assembler
South Africa
mailto: av...@telkomsa.net

KR> missing subject lines

[AVLEC]

Guys, All of a sudden all my messages coming from krnet as well as from
corvaircraft are missing their subject lines. In order for me to find the
subject I have to right click on the message to see its properties. Is this
happening elsewhere or is it just on my side?
Regards
Dene Collett
KR2S builder
Freelance whisper assembler
South Africa
mailto: av...@telkomsa.net

KR> rudder pedals

[AVLEC]

KR heads
Those of you that have hung your rudder pedals from the shelf in stead of
mounting them on the floor. Were you happy with the height above the floor
that the horizontal made (the bit that your foot rests on)? I have a set of
pedals made to plans and have decided to hang them from the shelf to make
room for the nosewheel well and retract mechanism, but the horizontal
sections are now too low to the floor.
I was wondering what solutions you guys have come up with. I thought by
shortening the arm and keeping the cable attach point the same as the plans
call for (just closer to the horizontal piece now), it will just take a
little more movement at your foot to give the same movement at the rudder. I
can't see this posing any problems, can you? I suppose I could move the
cable attach point further out to compensate but there isn't enough length
left to compensate completely. By measurements I have taken, I will have to
shorten the pedals lever by about 60-70mm.
Regards
Dene Collett
KR2S builder
Freelance whisper assembler
South Africa
mailto: av...@telkomsa.net

KR> Kip Lounsbury

[AVLEC]

Does anyone know what ever happened to Kip Lounsbury (sp). I think he lived
in Main and had a pretty good looking KR2.
Regards
Dene Collett
KR2S builder
Freelance whisper assembler
South Africa
mailto: av...@telkomsa.net

KR> dragonfly canopies

[AVLEC]

Hi Guys
Dart industries is a South African company and their canopies are supplied
by another South African company by the name of "Acrylform" in Cape Town run
by a chap by the name of Jan Diener (sp). I will be ordering one shortly and
have been advised by Dart ind that I can expect to pay around ZAR1,950.00.
The canopies for the Whisper motor glider are also made by him and look very
good.
Regards
Dene Collett
KR2S builder
Freelance whisper assembler
South Africa
mailto: av...@telkomsa.net
- Original Message -
From: Don Chisholm 
To: 
Sent: Saturday, October 22, 2005 4:39 PM
Subject: KR> dragonfly canopies


> who supplies Dart industries
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>